UN 2507 — Chloroplatinic acid, solid
Placard: Corrosive. ERG Guide 154. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2507 is Chloroplatinic acid, solid, a corrosive toxic platinum acid salt assigned to ERG Guide 154. Dust, acidic solution and metal-contaminated runoff are key hazards.
Hazard overview: CORROSIVE and toxic platinum acid salt; dust or solution can burn eyes, skin and respiratory tissue. Hygroscopic solid dissolves in water to form acidic, metal-containing solution. Non-combustible, but heating may release hydrogen chloride, chlorine-containing fumes and metal residues.
Response guidance: For UN 2507, isolate the area, avoid skin contact and use SCBA where dust, vapor, mist or fire is present. Contain toxic/corrosive runoff and verify product controls with SDS and ERG 154.
Firefighter training notes: Training for UN 2507 should emphasize toxic/corrosive exposure routes, skin absorption, SCBA use, decontamination, runoff containment and SDS verification. Use ERG 154, SDS and local SOP.
Regulatory context: Chloroplatinic acid, solid is regulated as a hazardous material for transport and emergency response. Storage, exposure, spill reporting, waste and fire-code duties depend on quantity, concentration and jurisdiction; verify shipping papers, SDS and local authority requirements.
Storage & handling: Chloroplatinic acid, solid should be stored dry in tightly closed compatible containers with secondary containment, restricted access and segregation from bases, metals where incompatible and moisture-sensitive materials.
UN 2507 Quick Details
Common Hazards of UN 2507
- CORROSIVE and toxic platinum acid salt; dust or solution can burn eyes, skin and respiratory tissue.
- Hygroscopic solid dissolves in water to form acidic, metal-containing solution.
- Non-combustible, but heating may release hydrogen chloride, chlorine-containing fumes and metal residues.
- Contact with metals may generate flammable hydrogen under acidic conditions.
- Runoff may be acidic, corrosive and contaminated with platinum salts.
- Dust or solution may cause sensitization or allergic-type reactions in susceptible people.
- Avoid dust generation, skin contact and uncontrolled dilution runoff.
Chemical Identity & Physical Properties
Orange-yellow to brownish-red crystalline solid. Hygroscopic (absorbs moisture from air). No significant odor when dry.
| Also known as | Hexachloroplatinic acidPlatinic chloridePlatinum(IV) chloride hexahydrateHydrogen hexachloroplatinate(IV) |
| CAS Number | 16941-12-1 |
| Appearance | Orange-yellow to brownish-red crystalline solid. Hygroscopic (absorbs moisture from air). No significant odor when dry. |
| Flash Point | Not applicable (non-combustible inorganic solid) |
| Boiling Point | Not applicable (decomposes before boiling) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Highly soluble in water, forming acidic solution; no violent reaction but generates heat |
Fireground Response Guidance — UN 2507
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for dust, vapor, mist, fire or confined-space exposure. Wear chemical-resistant gloves, boots, eye/face protection and protective clothing.
Isolation & Evacuation
First Actions for a UN 2507 Incident
- Call 911 and the emergency response number on the shipping paper, if available.
- Keep unauthorized personnel away and establish incident command.
- Stay upwind, uphill and upstream.
- Avoid breathing vapor, dust, mist, smoke or fumes and avoid skin or eye contact.
- Do not touch damaged containers or spilled material without proper training and PPE.
- Ventilate confined spaces only after monitoring and only if properly trained and equipped.
- Use ERG Guide 154, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 2507 — Chloroplatinic acid, solidUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.